Overlapping fan-blade structure for a fan wheel



FIG. 1 is a perspective view of the overlapping fan-blade structure for fan wheel in accordance with a first embodiment of the claimed design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a rear elevational view thereof;

FIG. 8 is a perspective view of the overlapping fan-blade structure for fan wheel in accordance with a second embodiment;

FIG. 9 is a right side elevational view of FIG. 8;

FIG. 10 is a top plan view of FIG. 8;

FIG. 11 is a front elevational view of FIG. 8;

FIG. 12 is a bottom plan view of FIG. 8;

FIG. 13 is a left side elevational view of FIG. 8; and,

FIG. 14 is a rear elevational view of FIG. 8.

The broken line showing of the fan blade attachment element is included for the purpose of illustrating environmental structure and forms no part of the claimed design. 

The ornamental design for overlapping fan-blade structure for a fan wheel, as shown in the accompanying drawings. 